Naslov
Spacetimes dressed with stealth electromagnetic fields

Autori
Smolić, Ivica

Izvornik
Physical review. D. (2470-0010) 97 (2018), 8; 084041-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Einstein-Maxwell spacetimes, Classical black holes, Black hole thermodynamics

Sažetak
Stealth field configurations by definition have a vanishing energy-momentum tensor, and thus do not contribute to the gravitational field equations. While only trivial fields can be stealth in Maxwell's electrodynamics, nontrivial stealth fields appear in some nonlinear models of electromagnetism. We find the necessary and sufficient conditions for the electromagnetic fields to be stealth and analyse which models admit such configurations. Furthermore, we present some concrete exact solutions, featuring a class of black holes dressed with the stealth electromagnetic hair, closely related to force-free solutions. Stealth hair does not alter the generalized Smarr formula, but may contribute to the Komar charges.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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